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Guppyfriend Washing Bag — Captures Microplastic Fibres
Guppyfriend

Guppyfriend Washing Bag — Captures Microplastic Fibres

92 / 100 Low-Tox Score
microplastic filter scientific validation Stop! Micro Waste project
$50.00 approx. — check brand site for current price

2 Brand-claimed certifications — disclosed on the brand's product page

OEKO-TEX Standard 100
OEKO-TEX Association
Brand-wide certification

Every component tested for harmful substances by OEKO-TEX Association.

Brand-disclosed
Checked 2026-05-08T17:00:09.730Z
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External link to the brand's own product page. Listings are based on Lowtoxgear's low-tox scoring criteria — we do not certify products ourselves.

Why we list this: A single synthetic fleece jacket sheds up to 250,000 microplastic fibres per wash. The Guppyfriend is currently the only washing bag with peer-reviewed evidence of its capture efficiency.

Key features

  • Captures >99% of microfibres shed during washing (OEKO-TEX tested)
  • Self-filtering bag — fibres collect in corners for easy disposal
  • Developed by STOP! Micro Waste and endorsed by Patagonia
  • Made from untreated polyamide 6.6 — does not shed itself
  • Protects garments as well as filtering fibres